LA-ICP-MS zircon U-Pb dating of dikes in the Dajing copperpolymetallic deposit and a discussion on the metallogenic epoch

LIU Mingtao; LIU Jianming; XUE Chunji; CHEN Xiangping; CHEN Zhiguo; FENG Baoshan

2019 Vol. 38, No. 8

Article Contents

Article navigation > Geological Bulletin of China > 2019 > 38(8): 1306-1313

Next Article Previous Article

LIU Mingtao, LIU Jianming, XUE Chunji, CHEN Xiangping, CHEN Zhiguo, FENG Baoshan. LA-ICP-MS zircon U-Pb dating of dikes in the Dajing copperpolymetallic deposit and a discussion on the metallogenic epoch[J]. Geological Bulletin of China, 2019, 38(8): 1306-1313.

Citation:

LIU Mingtao, LIU Jianming, XUE Chunji, CHEN Xiangping, CHEN Zhiguo, FENG Baoshan. LA-ICP-MS zircon U-Pb dating of dikes in the Dajing copperpolymetallic deposit and a discussion on the metallogenic epoch[J]. Geological Bulletin of China, 2019, 38(8): 1306-1313.

LA-ICP-MS zircon U-Pb dating of dikes in the Dajing copperpolymetallic deposit and a discussion on the metallogenic epoch

1.
Tianjin North China Geological Exploration Bureau, Tianjin 300170, China
2.
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
3.
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China

Received Date: 07 April 2018

Revised Date: 22 August 2018

Publish Date: 15 August 2019

Abstract

Abstract

The Dajing deposit was previously regarded as a magmatic hydrothermal type deposit.The orebodies are controlled by the NW-and NWW-trending faults and occur in Permian Linxi Formation. The zircon samples collected during the research were dated by using LA-ICP-MS zircon U-Pb method, and the authors obtained the following results:the zircon U-Pb ages are 164.1±0.8Ma (MSWD=0.60, n=16) and 253.8 ±1.1Ma (MSWD=0.96, n=14) for felsite dikes and andesite porphyry dikes, respectively. Felsite dikes were formed in a collisional setting probably related to the closure of Mongolia-Okhotsk Ocean and post collision, while andesite porphyry dikes were formed in a tectonic setting possibly related to the collision between Siberian Plate and North China Plate. Based on the zircon U-Pb ages of dikes obtained, the authors have reached the conclusion that the ore-forming process of the Dajing polymetallic deposit occurred later than 164Ma. The most intense volcanic-magmatic activities of the Da Hinggan Mountains took place during Middle Yanshanian period. It is therefore held that the ore-forming process of the Dajing polymetallic deposit occurred approximately in Late Jurassic-Early Cretaceous.
- Dajing /
- LA-ICP-MS zircon U-Pb dating /
- metallogenic epoch /
- Late Jurassic-Early Cretaceous /
- felsite /
- andesite porphyry

FullText(HTML)

References

[1]	黄世乾, 林达富, 晏汝逊, 等.大井锡-银-铜矿床及其成因[J].地质与勘探, 1986, 22(6):28-32. Google Scholar
[2]	艾霞, 冯建忠.内蒙大井锡多金属矿床成矿地质特征及成因探讨[J].有色金属矿产与勘查, 1992, (2):82-92. Google Scholar
[3]	冯建忠.大井锡多金属硫化物矿床地质特征及成因[J].地质与勘探, 1992, (1):69-77. Google Scholar
[4]	张德全.大井银铜锡矿体——一个潜火山热液矿床的特征和成因[J].火山地质与矿产, 1993, 14(1):37-46. Google Scholar
[5]	任耀武, 曹倩雯.再论内蒙古大井锡铜多金属矿床成因[J].吉林地质, 1996, 15(2):45-51. Google Scholar
[6]	郑波.内蒙古大井锡多金属矿床次火山岩脉与成矿[J].矿产与地质, 2009, 23(4):335-339. doi: 10.3969/j.issn.1001-5663.2009.04.010 CrossRef Google Scholar
[7]	张会琼, 王京彬, 王玉往, 等.内蒙古大井锡多金属矿床脉岩的成矿与找矿意义[J].地质与勘探, 2011, 47(3):344-352. Google Scholar
[8]	江思宏, 梁清玲, 刘翼飞, 等.内蒙古大井矿区及外围岩浆岩锆石U-Pb年龄及其对成矿时的约束[J].岩石学报, 2012, 28(2):495-513. Google Scholar
[9]	廖震, 王玉往, 王京彬, 等.内蒙古大井锡多金属矿床岩脉LAICP-MS锆石U-Pb定年及其地质意义[J].岩石学报, 2012, 28(7):2292-2306. Google Scholar
[10]	冯建忠, 艾霞, 吴俞斌, 等.内蒙大井多金属矿床稳定同位素地球化学特征[J].吉林地质, 1994, 13(3):60-66. Google Scholar
[11]	赵一鸣, 王大畏, 张德全, 等.内蒙古东南部铜多金属成矿地质条件及找矿模式[M].北京:地震出版社, 1994. Google Scholar
[12]	赵一鸣, 张德全.大兴安岭及其邻区铜多金属矿床成矿规律与远景评价[M].北京:地震出版社, 1997. Google Scholar
[13]	Nasdala L, Hofmeister W, Norberg N, et al. Zircon M257-a homogeneous natural reference material for the ion microprobe U-Pb analysis of zircon[J]. Geostandards and Geoanalytical Research, 2008, 32:247-265. doi: 10.1111/j.1751-908X.2008.00914.x CrossRef Google Scholar
[14]	Liu Y S, Hu Z C, Gao S, et al. In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard[J]. Chemical Geology, 2008, 257:34-43. doi: 10.1016/j.chemgeo.2008.08.004 CrossRef Google Scholar
[15]	Ludwig K R. User's Manual for Isoplot 3.0: AGeochrono-logical Toolkit for Microsoft Excel[M]. Berkeley Geoch-ronology Center. Special publication, 2003, 4: 1-71. Google Scholar
[16]	吴元保, 郑永飞.锆石成因矿物学研究及其对U-Pb年龄解释的制约[J].科学通报, 2004, 49(16):1589-1604. doi: 10.3321/j.issn:0023-074X.2004.16.002 CrossRef Google Scholar
[17]	艾永富, 张晓辉.内蒙大井矿床的脉岩与成矿[C]//中国地质学会."八五"地质科技重要成果学术交流会论文选集.北京: 冶金工业出版社, 1996: 231-234. Google Scholar
[18]	孙德有, 吴福元, 李惠民, 等.小兴安岭西北部造山后A型花岗岩的时代及与索伦山-贺根山-扎赉特碰撞拼合带东延的关系[J].科学通报, 2000, 45(20):2217-2222. doi: 10.3321/j.issn:0023-074X.2000.20.019 CrossRef Google Scholar
[19]	孙德有, 吴福元, 张艳斌, 等.西拉木伦河-长春-延吉板块缝合带的最后闭合时间——来自吉林大玉山花岗岩体的证据[J].吉林大学学报(地球科学版), 2004, 34(20):174-181. Google Scholar
[20]	尚庆华.北方造山带内蒙古中、东部地区二叠纪放射虫的发现及意义[J].科学通报, 2004, 49(24):2574-2579. doi: 10.3321/j.issn:0023-074X.2004.24.014 CrossRef Google Scholar
[21]	施光海, 苗来成, 张福勒, 等.内蒙古锡林浩特A型花岗岩的时代及区域构造意义[J].科学通报, 2004, 49(4):384-389. doi: 10.3321/j.issn:0023-074X.2004.04.015 CrossRef Google Scholar
[22]	刘永江, 张兴洲, 金巍, 等.东北地区晚古生代区域构造演化[J].中国地质, 2010, 37(4):943-951. doi: 10.3969/j.issn.1000-3657.2010.04.010 CrossRef Google Scholar
[23]	Miao L C, Fan W M, Liu D Y, et al. Geochronology and geochemistry of the Hegenshan ophiolitic complex:Implications for late-stage tectonic evolution of the Inner Mongolia-Daxinganling Orogenic Belt, China[J]. Journal of Asian Earth Sciences, 2008, 32(5/6):348-370. Google Scholar
[24]	赵越, 徐刚, 张栓宏, 等.燕山运动与东亚构造体制的转变[J].地学前缘, 2004, 11(3):319-328. doi: 10.3321/j.issn:1005-2321.2004.03.030 CrossRef Google Scholar
[25]	刘建明, 张锐, 张庆洲.大兴安岭地区的区域成矿特征[J].地学前缘, 2004, 11(1):269-277. doi: 10.3321/j.issn:1005-2321.2004.01.024 CrossRef Google Scholar
[26]	胡健民, 刘晓文, 赵越, 等.燕山板内造山带早期构造变形演化——以辽西凌源太阳沟地区为例[J].地学前缘, 2004, 11(3):255-271. doi: 10.3321/j.issn:1005-2321.2004.03.025 CrossRef Google Scholar
[27]	邓晋福, 赵国春, 苏尚国, 等.燕山造山带燕山期构造叠加及其大地构造背景[J].大地构造与成矿学, 2005, 29(2):157-165. doi: 10.3969/j.issn.1001-1552.2005.02.001 CrossRef Google Scholar
[28]	张吉衡.大兴安岭中生代火山岩年代学及地球化学研究[D].武汉: 中国地质大学博士学位论文, 2009.http://cdmd.cnki.com.cn/Article/CDMD-10491-2009153771.htm Google Scholar
[29]	刘伟, 潘小菲, 谢烈文, 等.大兴安岭南段林西地区花岗岩类的源岩:地壳生长的时代和方式[J].岩石学报, 2007, 23(2):441-460. Google Scholar